/*
 * Copyright (C) 2010 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.zxinglibrary.zxing.camera;

import android.hardware.Camera;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

/**
 * 邮箱: ning137@foxmail.com
 *
 * 作者: njb
 *
 * 日期: 2017年2月10日
 *
 * 描述: 相加预览回调
 */
@SuppressWarnings("deprecation")
public class PreviewCallback implements Camera.PreviewCallback {
	private static final String TAG = PreviewCallback.class.getName();
	private final CameraConfigurationManager mConfigManager;
	private Handler mPreviewHandler;
	private int mPreviewMessage;

	PreviewCallback(CameraConfigurationManager configManager) {
		this.mConfigManager = configManager;
	}

	void setHandler(Handler previewHandler, int previewMessage) {
		this.mPreviewHandler = previewHandler;
		this.mPreviewMessage = previewMessage;
	}

	@Override
	public void onPreviewFrame(byte[] data, Camera camera) {
		Camera.Size cameraResolution = mConfigManager.getCameraResolution();
		if (mPreviewHandler != null) {
			Message message =
					mPreviewHandler.obtainMessage(mPreviewMessage, cameraResolution.width, cameraResolution.height, data);
			message.sendToTarget();
			mPreviewHandler = null;
		} else {
			Log.v(TAG, "no handler callback.");
		}
	}
}
